Squince, Ireland offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Squince, Munster, Ireland, is known for the historic Squince Castle and the annual Squince Music Festival. The best time to travel to Squince, Ireland, is from May to September, with average air temperatures around 55-65°F (13-18°C) and water temperatures around 50-60°F (10-16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!